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Alika [10]
3 years ago
10

After buying some new coins, Andre has 80 coins in his collection. Last month, he had 50 coins. The size of his current collecti

on is what percentage of his collection last month?
Mathematics
1 answer:
marta [7]3 years ago
5 0

Answer:

160%

Step-by-step explanation:

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What is the product of 2+i and 3-2i?
Darina [25.2K]

Answer:

8-i

Step-by-step explanation:

(2+i)(3-2i)

6-4i+3i-2(-1)

6-i+2

8-i

5 0
2 years ago
The table shows the battery lives in hours of ten Brand A batteries and ten Brand B batteries.
defon
Plotting the data (attached photo) roughly shows that the data is skewed to the left. In other words, data is skewed negatively and that the long tail will be on the negative side of the peak.

In such a scenario, interquartile range is normally the best measure to compare variations of data.

Therefore, the last option is the best for the data provided.

5 0
3 years ago
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The equation y=2.54x gives the length y in centimeters corresponding to a length x in inches. What is the length in centimeters
bija089 [108]
The equation given in the question is
y = 2.54 x
In this equation, x is in cm and y is in inches
Size of the ruler = 1 foot 
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Putting the value of 12 inches in the equation, we get
y = 2.54x
   = 2.54 * 12
   = 30.48 cm
From the above deduction, we can conclude that the length of the ruler is 30.48 cm. I hope that this is answer that you were looking for and the answer has come to your desired help.
6 0
3 years ago
Cone volume of 288in<br> and height 7 in find base of radius
stepan [7]
The answer would be:

6 0
3 years ago
Given: y varies directly with x and has a constant rate of change of 7. When the value of y is 12, then the value of x would be
docker41 [41]
Y = kx is the direct variation equation, where 'k' is the constant of variation.
12 = 7(x)
Divide both sides by 7
12/7 = x
7 0
3 years ago
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